package com.yjr.gulimall.ssoserver.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletResponse;
import java.util.UUID;
import java.util.concurrent.TimeUnit;

@Controller
public class LoginController {

    @Autowired
    private StringRedisTemplate stringRedisTemplate;

    @ResponseBody
    @GetMapping("/userInfo")
    public String userInfo(@RequestParam("token") String token){
        String s = stringRedisTemplate.opsForValue().get(token);
        return s;
    }

    @GetMapping("/login.html")
    public String loginPage(@RequestParam("redirect_url")String url, Model model, @CookieValue(value = "sso_token",required = false) String sso_token){
        if(!StringUtils.isEmpty(sso_token)){
            // 有人登录过
            return "redirect:" +url  + "?token=" + sso_token;
        }
        model.addAttribute("url", url);
        return "login";
    }

    @PostMapping("/doLogin")
    public String doLogin(@RequestParam("username")String username, @RequestParam("password")String password,@RequestParam("url")String url,HttpServletResponse response){
        if(!StringUtils.isEmpty(username) && !StringUtils.isEmpty(password) ){
            // 登录成功跳转 跳回之前的页面
            String uuid = UUID.randomUUID().toString().replace("-", "");
            Cookie cookie = new Cookie("sso_token", uuid);
            response.addCookie(cookie);
            stringRedisTemplate.opsForValue().set(uuid, username, 30, TimeUnit.MINUTES);
            return "redirect:" + url +"?token=" + uuid;
        }
        // 登录失败
        return "login";
    }
}
